CCSS.Math.Content.HSA.REI.B.4

Factor
n²-13n+40

• (n-5)(n-8)
• (n+5)(n-8)
• (n-5)(n+8)
• (n+6)(n+1)

Tags

CCSS.Math.Content.HSA.REI.B.4

Factor
x² - 5x - 36

• (x - 4)(x + 9)
• (x - 6)(x + 6)
• (x + 4)(x - 9)
• (x -12)(x + 3)

Tags

CCSS.Math.Content.HSA.REI.B.4

Factor:  
x² -17x - 60

• (x - 20)(x + 3)
• (x - 3)(x + 20)
• (x - 3)(x - 20)
• (x + 3)(x + 20)

Tags

CCSS.Math.Content.HSA.REI.B.4

Find the vertex of 
f(x) = -x² - 4x + 12.

• (-2, 16)
• (-2, 14)
• (2, 4)
• (-2, 4)

Tags

CCSS.Math.Content.HSA.REI.B.4

Identify the 'b' value: y = 16x² -8x -24

• 16
• -8
• 8
• -24

Tags

CCSS.Math.Content.HSA.REI.B.4

Factor:
x² - 8x - 128

• (x - 16)²
• (x - 16)(x + 8)
• (x + 16)(x - 8)
• (x - 16)(x - 8)

Tags

CCSS.Math.Content.HSA.REI.B.4

What are the x-intercepts?

• x= 2/3
• x= 4, x = -2
• x= -8, x = 1
• x= -4, x = 2

Tags

CCSS.Math.Content.HSA.REI.B.4

Factor:
x² + 5x - 24

• (x - 8)(x + 3)
• (x + 8)(x - 3)
• (x + 6)(x - 4)
• (x + 12)(x - 2)

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve by square roots:

4(x+9)²=24

• {-9+√6,-9-√6}

• {3,-3}

• {3}

• so solution

Tags

CCSS.Math.Content.HSA.REI.B.4

What is the discriminant and how many solutions would this quadratic have?

4x² + 6x - 4 = 0

• -28, No Solutions

• 28, 2 Solutions

• 100, 2 Solutions

• -100, No Solutions

Tags

CCSS.Math.Content.HSA.REI.B.4